Machine for applying edge-binding strips



July 22 1941. T. J. DOYLE MACHINE FOR APPLYING EDGE-BINDING STRIPS Filed Sept. 21, 1937 3 Sheets-Sheet 1 July 22, 1941. T. J. DOYLE MACHINE FOR APPLYING EDGEBIN DING STRIPS Filed Sept. 2 1937 3 Sheets-Sheet 2 A E WEMR July 22, 1941.v T. J. DOYLE 2,249,811

MACHINE FOR APPLYING EDGE-BINDING STRIPS Filed Sept. 21, 1937 3 Shams-Sheet 5 Patented July 22, 1941 UNITE STATES PATENT QFFHCE MACHINE FOR APPLYING EDGE-BINDING STRIPS Application September 21, 1937, Serial No. 164,918

36) @Iaims.

This invention relates to machines for applying edge-binding strips and is herein illustrated as embodied. in a machine for applying an adhesively coated. binding stripto the edge and adjacent margins of a piece of work, such, for example, as an. insole.

In the manufacture of shoes such as those known asv strap sandals, the edge of the insole would be exposed in the completed shoe were it not covered. by a binding strip of decorative material which commonly has'been secured in position by stitches passing. through the insole and the edges of the strip. It is difficult to cause stitchedistrips to fit tightly and. without wrinkles and with some insoles, the stitching is very difficult. In. order. to improve the appearance of the work andto make it possible toget a: tightly bound? edge on work which varies in shape or thickness around its periphery, it has been pro-- posed that the binding stripshallhave one face provided. with an adhesive of the type used on surgeonstape so that the strip may be wrapped around the edge of the work and be attached thereto smoothly and firmly by means of the adhesive carried by the strip. In the application of such adhesively coated strips, it is essential that the outer marginal portions-of the striprshall be brought into contact with the margins ofthe work piece after the inner portions have been stuck sincaotherwise, anedge of the strip might contact with a portion of. the work nearer the peripheral edge than is desired and a wrinkle formed the strip. Commonly, the binding material employed is formed from a bias textile strip which will stretch as the binding isapplied-to a sharply curved portion of the periphery of the work, thus enabling the strip-tubelaid-smoothly on the work without the formation of puckers or wrinkles.

Accordingly, an object of the invention is to provide a machine for applying a binding strip which will be suited for the application of an adhesively coated strip and enable'the binding to be applied smoothly and quickly;

In order that the adhesivelycoated binding may be applied smoothly across the margin of the work,.. the machine, in accordancewith a feature of the invention, is provided with means operating progressively across the margin, i; e., crosswise of. the edge of the work, and acting to press the binding into contact withthework first at the inner margin adjacent to-the edge of the work piece and then: progressively toward the outer margin. Asillustrativelyidescribed, two iorms of: binding, pressers have. been employed,

one ofwhich is a rocking member positioned transversely of the margin where the strip is to be applied and arranged to-conta-ct first with the corner of the work and then to tilt toward the inside of the work. Another pressing device, herein shown as operating on the lower margin of the work, is intermittently reciprocated transversely of the margin; The work of these pressers is facilitated in the illustrated machine by providing a guide which bends the binding material from. afiat condition into an open channel shape. The edge of the work is pressed against the mid por-ticn. of the strip as it rests in said guide and, as illustrated, the work is moved progressively through the machine by means of workfeeding mechanism, herein shown as of the oscillating-gripper or hammer-and-anvil type.

In order to be. able to control the Widths of the margins of the strip applied to the upper and lower faces of the work, provision is made, in accordance with another feature of the invention, for supporting the work at just the desired level with respect to the grooved strip-guide. As illustrated, this work support has an overhanging upper end which projects into the channel of the strip which has-been formed by the grooved guide and provision is made for controlling the heightwise relationof the table and guide. Preferably, the under side of the worksupport is beveled in the direction of the natural bend of the binding as it is applied to the work to avoidany scraping action on the coated surface of the binding strip. Operation of the machine is facilitated in the illustrated arrangement by placing the upper binding presser over the work table to bring one margin of the strip into firm engagement with the work. The other binding presser is positioned just beyond the work table, considered with reference to the direction of movement of the work, and, in order that it may press the binding into firm engagement with the work, the upper presser has an extension formingan abutment which lies above the work directly opposite this lower presser.

These and other features of the invention will be best understood from a consideration of the following description, taken in connection with the accompanying drawings, in which Fig. 1 is a side elevation of an illustrative machine with a side cover removed and a portion shown in section;

Fig. 2 is a horizontal section on the line IIII of Fig. 1;:

Fig. 3'is an end elevation of the machine with an end cover removed;

Fig. 4 is a vertical transverse section through the machine on the line IV-IV of Fig. 1;

Fig. 5 is a horizontal section through the machine on the line VV of Fig. 1;

Fig. 6 is a view of part of the operating mechanism removed from the frame and viewed. as from a section line VIVI in Fig. 1;

Fig. 7 is a side elevation of this same mechanism with parts in section, and

Fig. 8 is an angular view of this same mechanism and other operating parts removed from the frame.

The machine is built in a frame casting in in which there is journaled a drive shaft I2, this frame being provided with a central cavity l4 normally closed by a side cover l6 and an end cavity I8 (Fig. 5) normally closed by an end cover 2! Within these cavities I4 and I8 are arranged operating parts to actuate tools for pressing a precoated adhesive binding strip 22 around the edge of an insole 24 and for feeding the work along so that the binding is laid progressively about the periphery of the insole and the adjacent margins of the substantially parallel flat surfaces thereof. During the progress of the work through the machine, the insole is rested on a work support or table 25 adjacent to which there is a grooved guide 28 having a throat 30 which is roughly V shaped (Fig. 1) but in which the V has a flat bottom. The binding is drawn around the corner and through the open throat of this guide, being thereby given a sort of open channel of V shape. The under side of the table 26 is beveled in two directions at 21 (Fig. 3) and 29 '(Fig. 8) along the direction of the natural bend of the strip to avoid the binding strip and to allow it to run smoothly.

gins of the upper and lower surfaces of the insole, respectively, by an oscillating presser 34 and a reciprocating wiper 36. The presser 34 is rocked about an axis parallel to the line of feed, the axis here being at the upper corner of the insole, so that the binding is brought down into contact with the upper surface of the insole progressively from the inner margin of that portion of the binding which is adjacent'to the insole periphery to the outer margin of that portion of the binding, it being understood that the binding material is a bias braid and is stretched sufficiently at the sharply curved portions of the insole by a tension applied to the binding by any suitable means (not shown) so that there will be substantially no pleats visible on the upper and lower surfaces. At substantially the same time, the reciprocating wiper 35 carries the lower portion of the binding progressively into contact with the margin of the lower surface of the insole. The action of these devices, that is, the presser 34 and the wiper 36,

is intermittent and takes place during the backward or idle movement of an oscillating feed mechanism to be described later. The table 26 functions as a stationary anvil and cooperates with the wiper 38 to support the work for the action of the presser 34.

The rocking presser 34, having a portion above the table 26 and another portion above which is pivotally connected at 40 to a plate 42, this plate being resiliently biased to a predetermined normal position and swiveling about a pin 44 which is secured in an outstanding boss 46 (Fig. 5) formed integrally with the frame l0 within the cavity M. The lever 38, protruding through an opening 39 (Fig. 4) in the frame, is oscillated by means of a crank 48 on the drive shaft l2 on which there is mounted a pitman 50 connected by a pin 5! to a slide 52 which is joined, in turn,--to the lever 38 by a link 54. This slide and another similar one, to be described later, are received in a groove 56 extending vertically of a Web 58 which is integral with the frame ID.

The arrangement of this presser lever 38 is such that the rocking presser 34 contacts first with the binding where it rests on the upper, outer corner of the insole supported on the table an then rocks about this corner so as to press the upper portion of the binding progressively, widthwise from the inner to the outer margins thereof, into contact with the work. In so doing, the pivot 40 is raised slightly, thereby rocking the plate 42 about its fixed axis 44 and this takes place against the tension of a spring 60 surrounding a bolt 62 which is pivotally attached by a pin 64 to a portion of the plate 42, the latter being substantially triangular in shape. The spring 60 is confined between nuts 66' at the bottom of the bolt 62 and a guide block 68 received in a recess 10 (Fig. 5) in the side cover I6. This guide block is releasably attached to the cover by means of an integral bolt 12 having a nut 2'4. It will be seen from Fig. 1 that the bolt 62 is substantially smaller than the opening of the guide block 68 and that it is provided with a guide sleeve 16 threaded on the upper portion of the bolt and held in adjusted position there by a lock nut 78.

The reciprocating wiper 36, by which the binding is applied to the lower surface of the work, is formed at the end of a rod 89 slidable within a rib 82 forming part of the frame and is held against rotation by a block 84 which is attached thereto by a set screw 86 and one side of which rests against a vertical surface of a boss 88 forming part of the frame casting. The operative portion of the wiper 35 has a rounded corner 30, as may be seen in Fig. 4, in order to reduce the friction of the binding material thereagainst when the work is fed and this wiper is reciprocated in time-relation to the presser 34 by means of a crank 92 having a pitman 94 which is pivotally attached at $6 to a slide 98 lying beside the slide 52 in the groove 56. The presser 34 and the wiper 36 complete their work-contacting movements at substantially the same time. This slide 98 communicates its movement to the rod through a bell crank I58 pivotally mounted on the frame by means of a pin I02 at its mid portion and having its upper and lower arms connected to the block 34 and the slide 98, respectively, by sliding blocks I04 and H35 received in rectangular recesses therein,

An intermittent feeding movement is imparted to the work by a feed mechanism of a well-known type embodying upper and lower grippers I I0 and H2 which grasp the bound edge of the insole and carry it forward a short distance and then open and return for a new engagement with the insole during the time when the latter is gripped by the presser 34 and the wiper 36. To this end, the upper gripper H0 is formed as an overhanging portion at the top (Fig. 7) of a slide IM received in an inner groove I l6 (Fig. 5) of a swinging arm I l8,.by means of a screw. I22, 'Ijwo move.

ments. are imparted to the grippers, one by.-re-.

ciprocating the slide i it, in the arm are, and-this is done by a crank 52 i at thevery endof; the drive shaft whichis connectedby a pitman 12in to a block at the lower end. of a rod liitepassing, through an aperture in a foot lite at the bottom of the slide H4. Above this foot, the rod Ififiis, surrounded by a spring, I32, held under tension by a ock 34 pinned t th pp r nd f he rod and slidably received in a groove I35, at the, treat of the swinging arm tit, This. spring 1,3,2. allowsfor variations in the thiclgnessof the work andcauses the upper gripper I tilto be resiliently Pre ed aga n t h previously l ed in in thereby, in cooperation with the lower gripper H2, to hammer the binding into firm contact with he p o t si es o he nso e e eed e, component of he mc mept f the ppe is imparted by rocking the arm l i8 about the drive shaft 52. and this is effected by a crank M0, formed on, said shaft and communicating its movement through a pitman [52 to, a lever Hid which rocks about a fixed pinMB supported on the frame It! (Fig.1) at the rear of the recess,

IS. The upper end of this lever ltd; is connected by a link [48 to an ear i 5i; onaside oitheswinge.

ing arm l 58.

During the operation of the machine, a supply of binding under suitable tension and drawn over the guide block 25 is formed'into an openphannel into which the periphery of the insole 2,4 is

pressed. The binding is then pressed against the upper and lower sides of the insole. This latter action is accomplished by the. presser 3t; abpve the work where it rests on the table 26; and the wiper 36 below the work at apoint opposite. the abutment portion of the presser 34. insolo is fed intermittently past the operating tools by feed mechanism comprisingthe grippersil l and i i2 which engage the upper and lower sides of the applied binding and press or hammer it firmly into engagement with the work as they intermittently grip the work and move it forward, i. e., in the direction of the feed movement.

Having described my invention, what I claim as new. and desire to secure by Letters-Patent of the United States is:

1. In a machine forapplying an adhesively coated. edge-binding strip, a grooved guide for the binding strip against which the edge of the work may press the strip to cause it to adhere to said edge, and means associated with the'upper and lower faces of the work respectively for intermittently pressing th mar ins, of, thestrip into contact with the margins of the work.

2. In a machine for applying an adhesively coated edge-binding strip, a grooved guide for the binding strip against which the edge of the work may press the strip to cause itto adhere to said edge, means associated with one face of the Work for intermittently pressing a margin of the strip into contact with a margin of the work, and a coasting hammer-and-anvil mechanism forward of said-intermittent pressing mechanism for. engagement with the bound edge of the work.

3. In a machine for applying an adhesively coated edge-binding strip, a. grooved guidefor the binding strip against which the edge of, the work may press the strip to cause it to adhere to said'edge, and driven meansassociated the upper and lower faces. of the work respectively for pressing the extreme margins of; the; strip into contact with the margins of the work after the inner portions of the width of the margins have been pressed into contact with said upper andlower faces of the Work.

4. In an apparatus for securing edge binding to shoe soles, a stationary anvil, a hammer, mechanism for rapidly reciprocating the hammer with respect to the anvil, and a tape-folding de vice for delivering between the hammer and anvil an adhesive-coated tape in folded relation upon the marginal edge of the shoe sole.

5. In a machine for applying an adhesively.

coated edge-binding strip, a grooved guide for the binding strip against which the peripheral edge of the work may. press. the strip to cause it to adhere. to saidedge, and cooperati g bindingapplying. members at least one of which moves progressively across. the margin of the binding strip.

6. In a machine for applying a binding-strip, a grooved guide for the binding strip, and an intermittently acting binding presser movable transversely of the edge of the work arranged to press against the binding from the pe-. riphery of the Work inwardly of the margin thereof.

'7. In a machine for applying a binding strip, a guide for the binding strip having a recessed throat, and a binding presser constructed and arranged torock about the peripheral cor-nerof- I the work.

8,. In a machine for applying a binding strip, a binding guide, a yielding support, and'a rocking presser member pivotally mounted on said support for carrying one margin 01? the strip into, engagement. with onermargin of the work 9.. In a machine for applying a binding strip, abinding guide, a, pivoted support which is resiliently biased to a normal position, anda rock-, ingpresser member forcarrying one margin of the strip intoengagement with one margin of; the work, said, presser member being pivotally mounted on said pivoted support.

10. In a machine for applying a binding strip, a grooved guide for. the binding strip to partially, fold it, a work support havinga work-engaging end projecting into the bend of. the partially. folded binding, a rocking presser member cooperating with the portion of thebinding whichis onthe side of the work not engaged byth work support, the presser member being positioned; oppositethe work support to cooperate therewith in pressing the binding strip against at least one side of the work, andmeans to urge thepresser member against the binding.

11. In a machine for applying a binding strip, a grooved guide for the binding strip, awork support having its upper end projecting into the binding partially folded by the guide, and a presser member cooperating with the portion of the binding which is above the work, the presser member being positioned opposite the worksupport to cooperate therewith and operating pro gressively across. the margin of thework.

12. In a machine for. applying. a binding strip for attachment by means of adhesive, a guide for folding the strip about the edgelof the work and provided with an abutment against which the work may press a mid-portion of the binding strip, and a hammer-and-anvil feed for; engages ment with the bound edgeof the work comprise n a nr la d hamme carrieaby aid anvil constructed and arranged to apply pressure to press the binding against the Work as it feeds the latter.

13. In a machine for applying a binding strip, a guide for the binding strip having a recessed throat, and means for wiping the strip progressively across the margin of one face of the work into firm contact therewith.

14. In a machine for applying a binding strip, a guide for bending the strip into a channel shape, and a wiper reciprocable transversely of the margin of the work for pressing a portion of the strip progressively into engagement with said margin.

15. In a machine for applying a binding strip, a guide for bending the strip into a channel shape, and a Wiper reciprocable transversely of the margin of the work for pressing a portion of the strip progressively into engagement with said margin, said wiper having a rounded corner at the side toward which the binding approaches the wiper.

16. In a machine for applying a binding strip, a grooved guide for the binding strip to fold the strip partially around the edge of the work, a Work support, and intermittently operated means positioned beside said Work support for pressing a portion of the binding into engagement with the margin of the work which has passed over the work support.

17. In a machine for applying a binding strip, a grooved guide for the binding strip to fold the strip partially around the edge of the work, a work support, and intermittently operated means positioned beside said work support for pressing a portion of the binding into engagement with the margin of the work which has passed over the work su port, said means wiping the strip progressively across the margin of the work.

18. In a machine for applying a binding strip, a grooved guide for the binding strip to fold the strip partially around the edge of the work, a work support having a portion projecting into the channel of the partially folded strip, and intermittently operated means acting transversely of the margin of the work for pressing a portion of the binding into engagement with the Work as it is supported on the work support.

19. In a machine for applying'a binding strip, a grooved guide for the binding strip to fold the strip partially around the edge of the work, a work support having a portion projecting into the channel of the partially folded strip, inter mittently operated means positioned beside said work support for pressing a portion of the binding into engagement with the margin of the work which has passed over the work support, and other pressing means operating transversely of the margin and positioned above said work sup port and said first-mentioned presser means to coact therewith.

20. In a machine for applying anadhesively coated edge-binding strip, a grooved guide for the binding strip for bending the strip into a channel form, a work support adjacent to said guide, means associated with the upper and lower faces of the Work respectively for pressing the margins of the strip into contact with the margins of the work progressively across said margins, and supporting means for said Work support and said guide permitting relative heightwise adjustment thereof to enablev control of the widths of the margins of the applied strip.

21. In a machine for applying an edge-binding strip for attachment by means of adhesive, a guide for bending the binding strip into a channel form and constructed and arranged to operate on work having an irregular edge contour, a work support adjacent to said guide, supporting means for said work support and said guide permitting relative heightwise adjustment thereof, and work-feeding means constructed and arranged intermittently to press the margins of the strip into contact with the margins of the work.

22. In a machine for applying a binding strip, a grooved guide for forming the binding strip into a channel shape, a work support positioned alongside said guide and having an overhanging upper end projecting into the channel of the binding strip, the under side of said work support being beveled outwardly and rearwardly to avoid the binding as it is applied to the work, and means for applying the binding to the margins of the upper and lower faces of the work.

23. In a machine for applying an edge-binding strip for attachment by means of adhesive, a guide for folding the strip partially around the edge of the work, a work support, and a member co-operating with said Work support to press a margin of the strip into contact with a margin of the work, said member being arranged for rocking movement about an axis substantially parallel to the direction of movement of the work thereby to engage the binding strip near the edge of the work before it engages the inner portion of the binding strip.

24. In a machine for applying an adhesively coated edge-binding strip, a grooved guide for the binding strip, means for feeding the work intermittently, and means positioned between the feeding means and the guide and associated with the upper and lower faces of the work respectively for intermittently pressing the margins of the strip into contact with the margins of the Work.

25. In a machine for applying an adhesively coated edge-binding strip, a grooved guide for the binding strip against which the edge of the work may press the strip to cause it to adhere to the peripheral edge of the work, means for feeding the work past the guide, and means associated with the upper and lower faces of the work respectively for pressing the strip progressively across the margins to bring the strip into engagement first with the outer portions of the margins of the work adjacent to the edge and then progressively into engagement with the inner portions of the margins.

26. In an apparatus for securing an edge binding to shoe soles, an anvil, a hammer, mechanism for rapidly reciprocating the hammer with respect to the anvil including a yielding mounting for the hammer to limit the blow delivered. thereby, and a tape-folding device for delivering between the' hammer and anvil an adhesive-coated tape in folded relation upon the marginal edge of a shoe sole.

27. In an apparatus for securing an edge binding to shoe soles, an anvil member, a hammer member, mechanism for rapidly reciprocating the hammer member with respect to the anvil member, one of said members having a yielding mounting to limit the blow delivered by the hammer member, and a tape-folding device for delivering between the hammer and anvil an adhesive-coated tape in folded relation upon the marginal edge of a shoe sole.

mer member with respect to the anvil member, 7

a yielding element associated with one of said members to limit the blow delivered by the ham mer member, and a tape-folding device for delivering between the hammer and anvil an adhesive-coated tape in folded relation upon the marginal edge of a shoe sole.

30. In a machine for applying an adhesivelycoated binding strip to the edge and adjacent margins of an insole, a grooved guide for folding a binding strip about the edge of an insole presented thereto and against which guide the edge of the insole may press the strip to cause it to adhere to said edge, and means associated with the upper and lower faces of the work respectively, for intermittently pressing the margins of the strip into contact with the margins of the insole, said means including a yielding member for limiting the pressing action upon the margins of the strip.

THOMAS J. DOYLE. 

